* FIX: when unread reply notification exists don't create new
From time to time, the user is creating a reply post and then they want to add additional details. They edit an existing post and for example, add a quote from a previous one.
In that situation, if the user to whom reply was directed to already have the unread notification, we should not create the new one.
That behaviour was mentioned here: https://meta.discourse.org/t/reply-then-edit-to-add-quote-notification-redundancy/138358
* FIX: dont create new notification if already exists
* Because custom emoji count as post "uploads" we were
marking them as secure when updating the secure status for post uploads.
* We were also giving them an access control post id, which meant
broken image previews from 403 errors in the admin custom emoji list.
* We now check if an upload is used as a custom emoji and do not
assign the access control post + never mark as secure.
Styling based on element-ids, it is impossible for themes/plugins to display multiple cards on a single page. Using classes is a more flexible approach. The element-ids are maintained for backwards compatibility with existing plugins/themes.
### UI Changes
If `SiteSetting.enable_bookmarks_with_reminders` is enabled:
* Clicking "Bookmark" on a topic will create a new Bookmark record instead of a post + user action
* Clicking "Clear Bookmarks" on a topic will delete all the new Bookmark records on a topic
* The topic bookmark buttons control the post bookmark flags correctly and vice-versa
Disabled selecting the "reminder type" for bookmarks in the UI because the backend functionality is not done yet (of sending users notifications etc.)
### Other Changes
* Added delete bookmark route (but no UI yet)
* Added a rake task to sync the old PostAction bookmarks to the new Bookmark table, which can be run as many times as we want for a site (it will not create duplicates).
* FEATURE: export defaultRenderTag function
This can be helpful for plugins e.g. when combined with replaceTagRenderer: a plugin may want to customize rendering for some tags and let others be rendered with default code
* refactor: don't change version
..as per review comment, https://github.com/discourse/discourse/pull/8941#discussion_r378406809
The `DiscourseLocation.initState` function was accidently renamed in 0431942f (select-kit-2) to `initOptions`. This means that the ember router does not automatically call the function after the router is initialized.
For a long time, we have been calling the `initState` function in the `init` function of discourse-location, which caused an imperceptible URL change to the the root domain, before switching back to the correct subfolder URL when ember called `initState`. This commit removes that call from the initializer, so `initState` is only called once (by ember).
Relevant ember code: https://github.com/emberjs/ember.js/blob/v3.12.2/packages/@ember/-internals/routing/lib/system/router.ts#L695-L699
